Future tenses
Will + Verb
Use
Predictions without Evidence
Promises and Offers
Spontaneous Decisions
Examples
I'm sure you will have a great time!
I'll help you paint your room.
Oh, wait! I'll get my coat!
Present Continuous
Use
Future Arrangements
Examples
I'm seeing my friends this evening.
Tomorrow I'm having a tattoo done.
Going To + Verb
Use
Predictions with Evidence
Plans and Intentions
Examples
The weather map shows it's going to be sunny.
This weekend I'm going to go skiing with my brother
Present Simple
Use
Timetables and Scheduled Events
Examples
The plane leaves at four o'clock.
The registration period begins on Monday.